Abstract
The Altus Information Inventory was group-administered to high school and college students to assess its objectivity, reliability, and predictive and concurrent validity. Inter-scorer reliability was .97 for the high school Ss and .83 for the college Ss. The corrected split-half (odd-even) reliability was .76 for the high school Ss but only .28 for the college Ss. The predictive validity of the test with grade point averages was .50 for high school males, .64 for high school females, and .22 for college males. Good concurrent validity was indicated by correlations with measures of verbal aptitude for high school students. The Inventory was too easy for college students and had low predictive and concurrent validity for them.
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